Microsoft Technology Licensing, LLC

Soner Terek

Jon Barry Avner

Vladimir Sadovsky

Surendra Verma

Avi R Geiger

Sameet Harishanker Agarwal

Anil Kumar Nori

Jose A Blakeley

Praveen Seshadri

Pedro Celis

Dale Woodford

Arthur T Whitten

Jon B Aver

Providing for a paradigm shift in block-level abstraction for storage devices is described herein. At a block-level, storage is characterized as a variable size data record, rather than a fixed size sector. In some aspects, the variable size data record can comprise a variable binary key-data pair, for addressing and identifying a variable size block of data, and for dynamically specifying the size of such block in terms of data storage. By changing the key or data values, the location, identity or size of block-level storage can be modified. Data records can be passed to and from the storage device to facilitate operational commands over ranges of such records. Block-level data compression, space management and transactional operations are provided, mitigating a need of higher level systems to characterize underlying data storage for implementation of such operations.

Abstracting programmatic representation of data storage systems

Data management between a common data store and multiple applications of multiple disparate application frameworks. A data storage component is provided that facilitates the storage of data, which data includes structured, semi-structured, and unstructured data. A common data platform interfaces to the data storage component to provide data services accessible by a plurality of disparate application frameworks, which data services allow a corresponding application of the different frameworks to access the data.

Platform for data services across disparate application frameworks

A mechanism is described for allowing third party client applications to affect how high-level document commands are implemented in a database. After a high-level document command meeting certain criteria is received in a database management system, the system identifies one or more third party client application that are to be notified when such high-level document commands are received. The client applications are then notified allowing the client application to return implementation instructions which are used by the database management system in determining how to implement the high-level document command. The instruction may be to prevent implementation altogether, to somehow change the implementation, or even to perform high-level document commands in addition to the original high-level document command.

Methods and systems for allowing third party client applications to influence implementation of high-level document commands

A mechanism is described for the reliable notification to client applications of the implementation of predefined high-level document commands in a database. The database management system is issued a number of high-level document commands such as 'move electronic mail message' or 'add folder' which are to be implemented in the underlying database. As each high-level document command is implemented, an entry representing the high-level document command is set in a notification table stored in a persistent memory such as the database. The appropriate notification is then dispatched to any subscribing client applications. The client application then acknowledges to the database application that the notification has been received. In response, the entry is deleted in the notification table in the database. If the database management system were to fail, the system would check the notification table to see what notification it should send upon restarting.

Methods and systems for performing reliable asynchronous notification of high-level document operations

A mechanism is described for the reliable notification to client applications of the implementation of predefined high-level document commands in a database. The database management system is issued a number of high-level document commands such as 'move electronic mail message' or 'add folder' which are to be implemented in the underlying database. As each high-level document command is implemented, an entry representing the high-level document command is set in a notification table stored in a persistent memory such as the database. This entry may be set in the same atomic transaction as the other table updates needed to implement the high-level document command. The appropriate notification is then dispatched to any subscribing client applications. The client application then acknowledges to the database application that the notification has been received. In response, the entry is deleted in the notification table in the database. If the database management system were to fail, the system would check the notification table to see what notification it should send upon restarting.

A method and system for generating unique and human-readable URLs for objects included in a network system. When an object is created in a network system it may be that the application creating the object is unaware of URLs. However, it may also be that other applications included on the network system access object using URLs. When it is determined that an object needs a URL, one or more human-readable properties of the object are used to generate a URL. One or more storage locations associated with previously generated URLs are searched to determine if the human-readable properties of the object will generate a unique URL. If it is determined that the human-readable properties of the object will generate a unique URL, then a URL using the human-readable properties of the object is generated. However, if it is determined that the human-readable properties of the object will not create a unique URL, then the URL created using the human-readable properties is modified so that it is unique. Modification of the URL does not effect the human-readability of the URL. The method is configured so that modifications to future URLs generated from identical human-readable properties will still be unique.

Methods and systems for assigning human-readable and unique uniform resource locators to objects

The present invention increase the efficiency of virtual memory usage when performing heap allocation and reduces virtual memory fragmentation caused by heap allocation. Instead of incrementally growing the initial heaps when there is not enough heap memory to make an allocation, an entirely new heap is created in which to make the allocation. That new heap may be added to the pool of heaps from which an allocation may be made. The additional heaps are of a constant, relatively large, size thereby reducing the risk of virtual memory fragmentation.

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Bellevue, WA, United States of America

Soner Terek